dynare/dynare++/src/dynare_atoms.cpp

275 lines
7.5 KiB
C++

// Copyright (C) 2006, Ondra Kamenik
// $Id: dynare_atoms.cpp 1765 2008-03-31 14:32:08Z kamenik $
#include "parser/cc/parser_exception.h"
#include "utils/cc/exception.h"
#include "dynare_atoms.h"
#include <string>
#include <cmath>
using namespace ogdyn;
using std::string;
void DynareStaticAtoms::register_name(const char* name)
{
if (varnames.query(name))
throw ogp::ParserException(string("The name ")+name+" is not unique.", 0);
StaticAtoms::register_name(name);
}
int DynareStaticAtoms::check_variable(const char* name) const
{
if (0 == varnames.query(name))
throw ogp::ParserException(std::string("Unknown name <")+name+">", 0);
Tvarmap::const_iterator it = vars.find(name);
if (it == vars.end())
return -1;
else
return (*it).second;
}
DynareDynamicAtoms::DynareDynamicAtoms(const DynareDynamicAtoms& dda)
: SAtoms(dda)
{
// fill atom_type
for (Tatypemap::const_iterator it = dda.atom_type.begin();
it != dda.atom_type.end(); ++it)
atom_type.insert(Tatypemap::value_type(varnames.query((*it).first), (*it).second));
}
void DynareDynamicAtoms::parse_variable(const char* in, std::string& out, int& ll) const
{
ll = 0;
std::string str = in;
int left = str.find_first_of("({");
if (left != -1) {
out = str.substr(0, left);
left++;
int right = str.find_first_of(")}", left);
if ((int)string::npos == right)
throw ogp::ParserException(
string("Syntax error when parsing Dynare atom <")+in+">.", 0);
std::string tmp(str, left, right-left);
sscanf(tmp.c_str(), "%d", &ll);
} else {
out = in;
}
}
void DynareDynamicAtoms::register_uniq_endo(const char* name)
{
FineAtoms::register_uniq_endo(name);
atom_type.insert(Tatypemap::value_type(varnames.query(name), endovar));
}
void DynareDynamicAtoms::register_uniq_exo(const char* name)
{
FineAtoms::register_uniq_exo(name);
atom_type.insert(Tatypemap::value_type(varnames.query(name), exovar));
}
void DynareDynamicAtoms::register_uniq_param(const char* name)
{
FineAtoms::register_uniq_param(name);
atom_type.insert(Tatypemap::value_type(varnames.query(name), param));
}
bool DynareDynamicAtoms::is_type(const char* name, atype tp) const
{
Tatypemap::const_iterator it = atom_type.find(name);
if (it != atom_type.end() && (*it).second == tp)
return true;
else
return false;
}
void DynareDynamicAtoms::print() const
{
SAtoms::print();
printf("Name types:\n");
for (Tatypemap::const_iterator it = atom_type.begin();
it != atom_type.end(); ++it)
printf("name=%s type=%s\n", (*it).first,
((*it).second == endovar) ? "endovar" : (((*it).second == exovar)? "exovar" : "param"));
}
std::string DynareDynamicAtoms::convert(int t) const
{
if (t < ogp::OperationTree::num_constants) {
throw ogu::Exception(__FILE__,__LINE__,
"Tree index is a built-in constant in DynareDynamicAtoms::convert");
return std::string();
}
if (is_constant(t)) {
double v = get_constant_value(t);
char buf[100];
sprintf(buf, "%20.16g", v);
const char* s = buf;
while (*s == ' ')
++s;
return std::string(s);
}
const char* s = name(t);
if (is_type(s, endovar)) {
int ll = lead(t);
char buf[100];
if (ll)
sprintf(buf, "%s(%d)", s, ll);
else
sprintf(buf, "%s", s);
return std::string(buf);
}
return std::string(s);
}
void DynareAtomValues::setValues(ogp::EvalTree& et) const
{
// set constants
atoms.setValues(et);
// set parameteres
for (unsigned int i = 0; i < atoms.get_params().size(); i++) {
if (atoms.is_referenced(atoms.get_params()[i])) {
const ogp::DynamicAtoms::Tlagmap& lmap = atoms.lagmap(atoms.get_params()[i]);
for (ogp::DynamicAtoms::Tlagmap::const_iterator it = lmap.begin();
it != lmap.end(); ++it) {
int t = (*it).second;
et.set_nulary(t, paramvals[i]);
}
}
}
// set endogenous
for (unsigned int outer_i = 0; outer_i < atoms.get_endovars().size(); outer_i++) {
if (atoms.is_referenced(atoms.get_endovars()[outer_i])) {
const ogp::DynamicAtoms::Tlagmap& lmap = atoms.lagmap(atoms.get_endovars()[outer_i]);
for (ogp::DynamicAtoms::Tlagmap::const_iterator it = lmap.begin();
it != lmap.end(); ++it) {
int ll = (*it).first;
int t = (*it).second;
int i = atoms.outer2y_endo()[outer_i];
if (ll == -1) {
et.set_nulary(t, yym[i-atoms.nstat()]);
}
else if (ll == 0)
et.set_nulary(t, yy[i]);
else
et.set_nulary(t, yyp[i-atoms.nstat()-atoms.npred()]);
}
}
}
// set exogenous
for (unsigned int outer_i = 0; outer_i < atoms.get_exovars().size(); outer_i++) {
if (atoms.is_referenced(atoms.get_exovars()[outer_i])) {
const ogp::DynamicAtoms::Tlagmap& lmap = atoms.lagmap(atoms.get_exovars()[outer_i]);
for (ogp::DynamicAtoms::Tlagmap::const_iterator it = lmap.begin();
it != lmap.end(); ++it) {
int ll = (*it).first;
if (ll == 0) { // this is always true because of checks
int t = (*it).second;
int i = atoms.outer2y_exo()[outer_i];
et.set_nulary(t, xx[i]);
}
}
}
}
}
void DynareStaticSteadyAtomValues::setValues(ogp::EvalTree& et) const
{
// set constants
atoms_static.setValues(et);
// set parameters
for (unsigned int i = 0; i < atoms_static.get_params().size(); i++) {
const char* name = atoms_static.get_params()[i];
int t = atoms_static.index(name);
if (t != -1) {
int idyn = atoms.name2outer_param(name);
et.set_nulary(t, paramvals[idyn]);
}
}
// set endogenous
for (unsigned int i = 0; i < atoms_static.get_endovars().size(); i++) {
const char* name = atoms_static.get_endovars()[i];
int t = atoms_static.index(name);
if (t != -1) {
int idyn = atoms.outer2y_endo()[atoms.name2outer_endo(name)];
et.set_nulary(t, yy[idyn]);
}
}
// set exogenous
for (unsigned int i = 0; i < atoms_static.get_exovars().size(); i++) {
const char* name = atoms_static.get_exovars()[i];
int t = atoms_static.index(name);
if (t != -1)
et.set_nulary(t, 0.0);
}
}
DynareSteadySubstitutions::DynareSteadySubstitutions(const ogp::FineAtoms& a,
const ogp::OperationTree& tree,
const Tsubstmap& subst,
const Vector& pvals, Vector& yy)
: atoms(a), y(yy)
{
// fill the vector of left and right hand sides
for (Tsubstmap::const_iterator it = subst.begin();
it != subst.end(); ++it) {
left_hand_sides.push_back((*it).first);
right_hand_sides.push_back((*it).second);
}
// evaluate right hand sides
DynareSteadyAtomValues dsav(atoms, pvals, y);
ogp::FormulaCustomEvaluator fe(tree, right_hand_sides);
fe.eval(dsav, *this);
}
void DynareSteadySubstitutions::load(int i, double res)
{
const char* name = left_hand_sides[i];
int iouter = atoms.name2outer_endo(name);
int iy = atoms.outer2y_endo()[iouter];
if (! std::isfinite(y[iy]))
y[iy] = res;
}
DynareStaticSteadySubstitutions::
DynareStaticSteadySubstitutions(const ogp::FineAtoms& a, const ogp::StaticFineAtoms& sa,
const ogp::OperationTree& tree,
const Tsubstmap& subst,
const Vector& pvals, Vector& yy)
: atoms(a), atoms_static(sa), y(yy)
{
// fill the vector of left and right hand sides
for (Tsubstmap::const_iterator it = subst.begin();
it != subst.end(); ++it) {
left_hand_sides.push_back((*it).first);
right_hand_sides.push_back((*it).second);
}
// evaluate right hand sides
DynareStaticSteadyAtomValues dsav(atoms, atoms_static, pvals, y);
ogp::FormulaCustomEvaluator fe(tree, right_hand_sides);
fe.eval(dsav, *this);
}
void DynareStaticSteadySubstitutions::load(int i, double res)
{
const char* name = left_hand_sides[i];
int iouter = atoms.name2outer_endo(name);
int iy = atoms.outer2y_endo()[iouter];
if (! std::isfinite(y[iy]))
y[iy] = res;
}